Question regarding Time Zone

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I am quite new with Tado, installed in the last weeks about 11 TRV in my house.

The biggest issue I am facing is the possibility to save presets\scenario... instead of manually changing every day the scheduling. This is really a nightmare.

Anyway... in my apartment the boiler starts at 05:30 AM and so all the TRV are programmed at the same.

10 TRV out of 11, despite the scheduling set at 05:30, start at 06:30 (exactly one hour later). Why? it exactly one hour shift... I checked the setting for my home and the address\country are correct and there is no other place to set the time zone...

1 TRV out of 11, the one in the kitchen, at 07:30 is still closed.